I lost you here. Why? I also don't see every Protestant deciding an individual moral code.
Of course not. But in principle, they could open the Bible and do just that, because that is Protestantism is all about: find out what you think the Bible said and find a church that fits you. If you can't, start your own.
I lost you here. Why?
Originally, you said:
Ultimately, the test of correctness is whether a holy work brings people to Christ.
So, I took your test of sound Christian teaching correctness to be that if it brought someone to Christ, then it was correct. Then you said:
If Jake and Jim met a man and each spoke to him, and Jake sent him to Christ then Jake spoke the truth, even though Jim might have succeeded in sending him to Satan.
I took this to mean that Jake was the true Christian. However, Jake failed to bring the man to Christ because Jim succeeded in sending him to satan. Therefore, Jake's true Christian teaching must have been incorrect because it failed to bring the man to Christ.
... because that is [what] Protestantism is all about: find out what you think the Bible said and find a church that fits you. If you can't, start your own.
I would respectfully disagree that Protestantism is all about coming up with one's own theology and then finding validation in one of a million different Protestant churches. I see that as an unfair stereotype. I know it wasn't true in my case. I chose my church because of its emphasis on following the Bible generally, not because of any pet belief that was relatively unique to that church. The only reason I am a Southern Baptist is because they were the first REALLY Bible believing church that I found. I could just as easily have wound up somewhere else, as long as the heart of the church was focused on God and the Bible.